Microsoft founder Bill Gates is still the world's richest man. Worth $79.2 billion, Gates kept his spot at the top of the 2015 Forbes Billionaires List, while Mexican business magnate Carlos Slim Helu, worth $77.1 billion, clocked in again at No.

(Corrects day of the week to Tuesday from Friday in paragraph 1). Mar 3 (Reuters) - Stock futures pointed to a lower opening for Canada's main stock index on Tuesday after stronger-than-expected GDP data for the fourth quarter suggested the Bank of ...